Class / Patent application number | Description | Number of patent applications / Date published |
361618000 | Gas insulated | 29 |
20090109604 | Gas Insulated Switchgear and Gas Circuit Breaker - A gas insulated switchgear is provided which uses an SF | 04-30-2009 |
20090284901 | SUBSEA SWITCHGEAR APPARATUS - A subsea switchgear apparatus including a frame, at least one electrical power inlet mounted to the frame, at least one electrical power outlet mounted to the frame, a distribution chamber mounted to the frame, and at least one canister mounted to the frame. The at least one canister includes a chamber accommodating at least one high voltage circuit breaker. Electrical connections are arranged in the distribution chamber for electrically connecting a respective circuit breaker of a canister to an associated power inlet and power outlet of the switchgear apparatus. The chamber of the respective canister is separated from the distribution chamber by a pressure barrier. | 11-19-2009 |
20100149730 | GAS-INSULATED SWITCHGEAR - An object is to provide a gas-insulated switchgear allowing reduction in layout dimension in a direction of axis lines of circuit breakers and also reduction in layout dimension in a direction orthogonal to the direction of the axis lines of the circuit breakers, thereby allowing reduction in installation area. Between a main bus | 06-17-2010 |
20100259870 | GAS-INSULATED SWITCHGEAR - It is an object to provide gas-insulated switchgear that occupies less installation space, in which the number of bellows to be used can be reduced, and that can minimize a work range in disassembling at addition or accident, and in reassembling. In double-bus gas-insulated switchgear in which a bus-side device is arranged above a breaker to reduce installation space to be occupied, a bellows is arranged between bus-side devices arranged vertically to each other, and under a support frame of the breaker, another support frame that can be separated therefrom is arranged, thereby enabling disassembling of a lower bus-side device alone. | 10-14-2010 |
20110096468 | Medium-voltage switchgear - The invention relates to a medium voltage switchgear, comprising at least two switchboard sections, as according to the generic part of patent claim | 04-28-2011 |
20110149481 | GAS INSULATED SWITCHGEAR - An object is to provide gas insulated switchgear that is able to inhibit heat generation of a pressure container. Electrically-conductive members that are non-magnetic and have higher electric conductivity than that of the material of which the pressure container is made, are provided on the inside and on the outside of the pressure container, while being positioned along a main bus and being attached via a flange of the pressure container. Thus, eddy current that occurs when an electric current flows through the main bus are caused to flow through the electrically-conductive members having higher electric conductivity than that of the pressure container. Also, a current return path for the eddy current is formed by a flow path including the electrically-conductive members. Consequently, it is possible to reduce the eddy current flowing on the pressure container and to inhibit an increase in the temperature of the pressure container. | 06-23-2011 |
20120002351 | THREE-PHASE COMMON TANK TYPE GAS INSULATED SWITCHGEAR - Vertical type tank | 01-05-2012 |
20130033798 | SWITCHGEAR - A switchgear having an electrified conductor accommodated in a tank in which insulating gas is contained includes a fixed contact connected to the electrified conductor, a movable contact installed to be contactable and separable to and from the fixed contact, an insulating rod that is externally extended from inside of the tank while being electrically insulated from the tank and turned by an operation device, and an insert that is extended from an end of the insulating rod toward the movable contact and is rotatably supported by a holding part installed in the electrified conductor. A flange part that is installed in the insert at a position where the holding part opposes the insulating rod and is extended in a substantially right-angle direction with respect to a direction of a rotation axis of the insulating rod is formed on the insert. | 02-07-2013 |
20130170104 | GAS INSULATED SWITCHGEAR WITH WITHDRAWABLE CIRCUIT BREAKER UNIT - A GIS (Gas Insulated Switchgear) includes a main bus compartment including a main bus-bar unit, a transfer bus compartment including a transfer bus-bar unit, a sealed circuit breaker compartment including a circuit breaker unit and a load side compartment including a current transforming unit and a transfer bus conductor electrically coupling the transfer bus-bar unit and the current transformer unit. The circuit breaker unit is contained in the sealed circuit breaker compartment being separately independent from other compartments. The transfer bus conductor passes from the transfer bus-bar unit through the load side compartment to the current transformer unit without passing through the circuit breaker compartment. The sealed circuit breaker compartment and the load side compartment do not share insulating gas. | 07-04-2013 |
20130201607 | PRESSURISED GAS-INSULATED MULTI-PHASE CONTROL PANEL - A compressed-gas-insulated polyphase switch panel includes a circuit-breaker module. The circuit-breaker module is equipped with a first connection side and a second connection side. The first connection side is connected to a busbar module. The second connection side is connected to a bushing module. The bushing module and the busbar module have polyphase compressed-gas-insulated phase conductor sections. The circuit-breaker module is respectively connected through connection modules to the busbar module and to the bushing module. Each of the connection modules includes single-phase compressed-gas-insulated phase conductor sections. The circuit-breaker module likewise has single-phase compressed-gas-insulated phase conductor sections. | 08-08-2013 |
20130215555 | SWITCHGEAR FOR BREAKING A MEDIUM-OR HIGH-VOLTAGE ELECTRIC CURRENT AND A MANUFACTURING METHOD THEREFOR - The present invention relates to switchgear for breaking a medium- or high-voltage electric current, which switchgear comprises a leaktight enclosure in which electrical components are found as well as a gaseous medium for extinguishing the electric arcs likely to occur in said enclosure, and which switchgear is characterized in that: the gaseous medium comprises at least one fluoroketone alone or in a mixture with at least one gas that does not form part of the fluoroketone family; the fluoroketone is present in the enclosure in part in the liquid state and in part in the gaseous state; and in that the enclosure further comprises means for absorbing molecular species that form after the ionization experienced by said fluoroketone during arcing. The invention also relates to a method of manufacturing said switchgear. | 08-22-2013 |
20130279083 | PASSIVE ARC MANAGEMENT SYSTEM WITH A FLUE CHAMBER - In an electrical distribution cabinet a mechanism providing quick, reliable, passive arc blast control has a flue chamber surrounding the likely arc site such as an electrical connection point. The flue chamber provides a flue channel which lengthens the arc and attenuates the current and temperature until the arc is extinguished. Preferably, the flue chamber and channel are formed of opposable open-faced polyhedral structures, one fitting inside the other. The mechanism is particularly suited for draw-out circuit breaker connections in a switch gear cabinet. | 10-24-2013 |
20130279084 | GAS-INSULATED SWITCHGEAR - A gas-insulated switchgear includes: a circuit breaker; a connection bus bar; a first disconnect switch; a second disconnect switch; a line bus bar; a main bus bar; and an abutment. The circuit breaker includes first and second branch outlets provided on a side surface of a cylindrical circuit breaker tank. The connection bus bar has one end connected to the first branch outlet. The first disconnect switch is connected to the other end of the connection bus bar. The second disconnect switch is connected to the second branch outlet. The line bus bar is led out from the second disconnect switch in a horizontal direction. The main bus bar is arranged above the second disconnect switch coaxially with the second branch outlet. The abutment is fixed to a top portion of the second disconnect switch and supports the main bus bar from below. | 10-24-2013 |
20140078648 | GAS INSULATED SWITCHGEAR - A gas insulated switchgear includes a support frame, a first fixed conductor being installed on one side of the support frame, a second fixed conductor opposing the first fixed conductor and being installed on another side of the support frame, a screw forming an axis on inner of the support frame and being spaced apart from the first and second fixed conductor, a first movable contact wherein one side of the first movable contact is bent and another side of the first movable contact moves along the axis through a rotation of the screw and a second movable contact wherein one side of the second movable contact is bent and another side of the second movable contact is move along the axis through a rotation of the screw. | 03-20-2014 |
20140211378 | GAS INSULATED SWITCHGEAR - A gas insulated switchgear including a circuit breaker, a first through third switches, a voltage transformer, a cable head, a gas insulated busbar unit, and first and second current transformers is provided. The gas insulated busbar unit is connected with the second current transformer and the first and second switches are connected with a bottom of the gas insulated busbar unit. The third switch is connected with the first current transformer, the cable head is connected with the third switch, and the voltage transformer is connected with a top of the cable head. The first and second current transformers are respectively connected with first and second sides of the circuit breaker. | 07-31-2014 |
20140247536 | SWITCHING INSTALLATION WITH PRESSURE CONTROLLED SHORT-CIRCUIT DEVICE - A switching installation includes a gas tight housing with at least one wall part. An input conductor disposed in the housing is configured to carry an input voltage. An insulation is arranged around the input conductor so as to insulate the input conductor from the housing. A short-circuit device is changeable from a first condition, in which the insulation is insulating the input conductor from the housing, to a second condition, in which an electrical short circuit connection is created through the insulation between the input conductor and an auxiliary connection. An actuator is coupled to the at least one wall part of the gas tight housing and is configured to actuate the short-circuit device as a result of movement of the wall part caused by a pressure increase in the housing. A threshold device is configured to provide a preset threshold in the actuator. | 09-04-2014 |
20140307366 | GAS INSULATED SWITCHGEAR - In a switchgear in which cables are used on both of the input side and the output side for connection between a main circuit and an external main circuit, a circuit breaker and connection conductors of the switchgear are stored in a box-shaped pressure tank together with insulating gas; an operating mechanism that performs opening and closing operation of the circuit breaker and a first cable connection portion that is connected to the connection conductors are attached to one face of the pressure tank; and a second cable connection portion that is connected to the connection conductors is attached to the other face of the pressure tank, the other face being parallel with respect to a direction connecting the operating mechanism and the circuit breaker. | 10-16-2014 |
20140321031 | Method For Operating An Electrical Apparatus - A method and device for operating a fluid-insulated electrical apparatus. The insulation fluid of the electrical apparatus includes at least two components. The method includes the step of determining a physical state of the insulation fluid by measuring at least three measurement variables with sensors. The method further includes the step of deriving trend variables indicative of changes over time for the measurement variables and/or for characterizing variables. These characterizing variables are derived from the measurement variables by using a relating equation, such as an equation of state, and are also indicative of the physical state of the insulation fluid. By testing for specific patterns of the trend variables, an operating state of the electrical apparatus is determined. The possible operating states correspond to specific and distinguishable non-fault and fault scenarios for the electrical apparatus. Thus, operating states can be distinguished and trouble-shooting in case of a failure is simplified. | 10-30-2014 |
20150131207 | Switchgear - An object is to provide a switchgear having a simple structure. To solve the problem, a switchgear according to the invention is characterized by having a fixed side electrode | 05-14-2015 |
20150311684 | GAS-INSULATED SWITCHGEAR - A circuit breaker is accommodated in a circuit breaker compartment such that a contacting/separating direction of a contact of the circuit breaker is along a vertical direction, a cable terminal of a first cable connected to one terminal of the circuit breaker via a first disconnector is accommodated in a first connection compartment such that a central conductor of the cable terminal is along the vertical direction, and a disconnector compartment which accommodates the first disconnector such that a contacting/separating direction of a contact of the first disconnector is along the vertical direction, is joined so as to be disposed between the circuit breaker compartment and the first connection compartment. | 10-29-2015 |
20150340174 | GAS INSULATED SWITCHGEAR - A gas insulated switchgear includes: gas tanks filled with insulating gas; a circuit breaker which is arranged such that the shaft center direction of a driving shaft thereof is parallel to a front portion of the gas tank and horizontal; a first disconnecting switch which is arranged on the lower side of the circuit breaker and is electrically connected to the circuit breaker; a busbar whose one end is connected to the circuit breaker and the other end is extended in the shaft center direction of the driving shaft of the circuit breaker; a second disconnecting switch electrically connected to the busbar; a cable terminal led out outside the gas tank from the first disconnecting switch; and a cable terminal led out outside the gas tank from the second disconnecting switch. | 11-26-2015 |
20150357801 | GAS-INSULATED SWITCHGEAR - To provide a gas-insulated switchgear including a metal tank that is grounded and has insulating gas filled therein, a central conductor that is extended in the tank and to which an alternating voltage is applied, an insulative coating film that is coated on an inner surface of the tank, and a coating film that is overcoated on the coating film and is formed by coating a coating material containing an insulative coating material component and a non-linear resistance material. Due to this configuration, behavior of metallic foreign matter can be suppressed in a wide range from a region having a small electric field to a region having a large electric field. | 12-10-2015 |
20160006224 | DISMANTLABLE INSULATOR FOR GAS INSULATED SWITCHGEAR - A dismantlable insulator is disclosed including a flange and an insulating body mated with the flange. The insulating body and the flange are separate in structure, and the insulating body is fitted inside the flange via multiple fixing elements. The flange is integrally formed with a housing of gas insulated switchgear, and has a radial projection which projects radially inward, an inner end face of the insulating body being in contact with the radial projection. The dismantlable insulator of an embodiment of the present invention can reduce gaps between the insulating body and the flange, increase the rate of end product acceptability and reduce production costs. | 01-07-2016 |
20160009948 | COATING MATERIAL FOR ELECTRICAL EQUIPMENT, METHOD FOR MANUFACTURING COATING MATERIAL FOR ELECTRICAL EQUIPMENT, AND CLOSED INSULATING DEVICE | 01-14-2016 |
20160043533 | Process For Providing A Contamination-Reducing Component To An Electrical Apparatus - A process for providing a contamination-reducing component to an electrical apparatus, the electrical apparatus including a housing enclosing an insulating space and an electrical component arranged in the insulating space, the insulating space including an insulation medium which includes or consists of carbon dioxide. The process includes the steps of presaturating the contamination-reducing component with carbon dioxide before placing it inside the electrical apparatus. | 02-11-2016 |
20160049775 | Knife Switch, A Switching Device Comprising A Knife Switch And A Switchgear - A knife switch including an operator device for moving a contact knife between a first open position and a second position in electrical contact with a contact element. A free end of the contact knife provided with a dynamic electric field control device including an electrically conductive element. A switching device including a two-position switch including an at least partly electrically conductive housing, a three-position switch including the knife switch for connecting the two-position switch to a first electric conductor, wherein the at least partially electrically conductive housing is connected to a second electric conductor. A switchgear including switching devices. | 02-18-2016 |
20160064171 | Switch Assembly, A Switching Device Comprising A Switch Assembly, A Switchgear Comprising A Switching Device And A Method For Cooling - A switch assembly including a vacuum switch mounted to an at least partly electrically conductive housing, and a holder for a vacuum bottle. The housing includes at least one gas entry opening at a lower end of the housing and at least one gas exit opening at an upper end of the housing, and a first free heat convection path between the openings to provide cooling. A second free heat convection path may be provided in a free space between the holder and vacuum bottle. A switching device for connecting the vacuum switch to a second electric conductor. An electric power distribution switchgear, encapsulating at least one three-phase module including a switching device. | 03-03-2016 |
20170236657 | DISCONNECTING SWITCH AND EARTHING SWITCH FOR GAS INSULATED SWITCHGEAR | 08-17-2017 |
20190144703 | COATING MATERIAL, COATING FILM, AND GAS INSULATED SWITCHGEAR | 05-16-2019 |